427 Auto Collision - CSN is one of few Nissan GTR Certified Collision Repair Shops in Ontario. We have completed factory training to properly repair all Nissan models, including the GTR super car, which has a multi-material body made of a combination of steel, aluminum, carbon fiber and plastic. Nissan requires repairs on models with a multi-material body to be performed by a certified professional at a Nissan Collision Repair Network shop. These are the only shops equipped with the specific tools and training to ensure accurate and safe repairs.